Tire tread and buttress



FIG. 1 is a perspective view of a tire tread and buttress, it being understood that the pattern is repeated uniformly throughout the circumference thereof;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof; and,

FIG. 4 is an enlarged fragmentary front view thereof.

The broken line showing of the tire sidewall in the drawings is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a tire tread and buttress, as shown and described. 